# This is a sample Python script.

# Press Shift+F10 to execute it or replace it with your code.
# Press Double Shift to search everywhere for classes, files, tool windows, actions, and settings.


def print_hi(name):
    # Use a breakpoint in the code line below to debug your script.
    print(f'Hi, {name}')  # Press Ctrl+F8 to toggle the breakpoint.


# Press the green button in the gutter to run the script.
if __name__ == '__main__':
    print_hi('PyCharm')
    s1 = "abcde"
    print(s1[::-1])
    print(s1[-1:-3:-1])
    str1="abcd"
    str2="cdef"
    for s in str2:
        if s not in str1:
            str1+=s
    print(str1)
